A NOTE ON WATER EXCHANGE UNDER FAST ICE IN LUTZOW-HOLM BAY, ANTARCTICA

Under coastal fast ice in the Ongul Strait near Syowa Station, Antarctica, warmer, more saline, and oxygen-poorer water appears in mid-depth and deep layers from winter to spring every year. This water is explained as a result of mixing between Circumpolar Deep Water (CDW) and Winter Water (WW). Thi...

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Bibliographic Details
Main Authors: Kay I. OHSHIMA, Nobuo ONO, Takatoshi TAKIZAWA, Shuki USHIO
Format: Report
Language:English
Published: Institute of Low Temperature Science, Hokkaido University 1991
Subjects:
Ongul
Syowa Station
Antarc*
Antarctica
Polar meteorology and glaciology
Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology
Online Access:https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3644
http://id.nii.ac.jp/1291/00003644/
https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3644&item_no=1&attribute_id=18&file_no=1
Description
Summary:Under coastal fast ice in the Ongul Strait near Syowa Station, Antarctica, warmer, more saline, and oxygen-poorer water appears in mid-depth and deep layers from winter to spring every year. This water is explained as a result of mixing between Circumpolar Deep Water (CDW) and Winter Water (WW). This water becomes more like CDW and more homogenized with time from winter to spring, and in December a mixing ratio of 1 : 3-1 : 4 for CDW to WW is required to explain the properties of the homogenized water. It is inferred that the CDW comes along the glacial troughs. Transport of CDW results in a significant amount of heat supply into the water under fast ice.

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